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Grade TDC Steel vs. C68700 Brass

Grade TDC steel belongs to the iron alloys classification, while C68700 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade TDC steel and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 80
41
Tensile Strength: Ultimate (UTS), MPa 1700
390

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1450
970
Melting Onset (Solidus), °C 1410
930
Specific Heat Capacity, J/kg-K 470
400
Thermal Conductivity, W/m-K 51
100
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
23
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
25

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
26
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
46
Embodied Water, L/kg 47
340

Common Calculations

Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 60
13
Strength to Weight: Bending, points 40
14
Thermal Diffusivity, mm2/s 14
30
Thermal Shock Resistance, points 50
13

Alloy Composition

Aluminum (Al), % 0
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
76 to 79
Iron (Fe), % 98 to 99.4
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Manganese (Mn), % 0.5 to 1.2
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.1 to 0.35
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
17.8 to 22.2
Residuals, % 0
0 to 0.5